1344485640 has 64 divisors (see below), whose sum is σ = 4041720000. Its totient is φ = 357795072.

The previous prime is 1344485633. The next prime is 1344485641. The reversal of 1344485640 is 465844431.

It is not an unprimeable number, because it can be changed into a prime (1344485641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48654 + ... + 71106.

It is an arithmetic number, because the mean of its divisors is an integer number (63151875).

Almost surely, 2^1344485640 is an apocalyptic number.

1344485640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344485640 is an abundant number, since it is smaller than the sum of its proper divisors (2697234360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1344485640 is a wasteful number, since it uses less digits than its factorization.

1344485640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22966 (or 22962 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 1344485640 is about 36667.2284199392. The cubic root of 1344485640 is about 1103.7025755713.

The spelling of 1344485640 in words is "one billion, three hundred forty-four million, four hundred eighty-five thousand, six hundred forty".